Flush valve for milk path of coffee machine

Abstract

The utility model belongs to the technical field of flush valves, particularly relates to a coffee machine milk path flush valve, and aims to solve the problems that the production cost of parts is increased and the product occupies the assembly space of a coffee machine due to the fact that a switching valve is complex in overall structure and tedious in assembly process and needs a large number of parts, the following scheme is provided: the coffee machine milk path flush valve comprises a valve body, a first liquid inlet used for receiving pressure water is formed in one side of the valve body, a liquid outlet used for pumping milk is formed in the top of the valve body, the end cover is arranged at a valve port of the valve body, a second liquid inlet used for receiving milk is formed in the end cover, a rubber plug is slidably connected to the inner wall of the valve body, and a reset spring and a buckling assembly are arranged between the rubber plug and the end cover. The device is arranged on the valve body and the end cover so that the end cover can be rapidly mounted and dismounted. Under the condition that basic use requirements are met, the number of parts is greatly reduced, the cost of the parts is reduced in a large range, the assembly process is simplified, the length of a product can be reduced by half, and therefore the occupied assembly space of the coffee machine is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of flushing valves, in particular to a milk circuit flushing valve for a coffee machine. Background Art

[0002] The milk line flushing valve in the coffee machine is mainly used to clean the milk frother and milk channel to ensure the normal operation and hygiene of the coffee machine. The milk line flushing valve generally consists of a controllable valve, which is usually installed inside the milk tank or at the connection with the milk tank. When the milk line needs to be flushed, the coffee machine will open the milk line flushing valve to introduce the cleaning liquid (usually hot water) into the milk channel for flushing.

[0003] After searching, it was found that the overall structure of the switching valve in the milk line cleaning system of a coffee machine with announcement number CN116649786A is relatively complex, the assembly process is cumbersome, and many parts are required, which increases the production cost of parts, and the product occupies the assembly space of the coffee machine.

[0004] In view of the above problems, the utility model document proposes a milk line flushing valve for a coffee machine. Utility Model Content

[0005] The utility model provides a coffee machine milk line flushing valve, which solves the shortcomings of the prior art that the overall structure of the switching valve is relatively complex, the assembly process is cumbersome, many parts are required, resulting in increased parts production costs, and the product occupies the coffee machine assembly space.

[0006] The utility model provides the following technical solutions:

[0007] A coffee machine milk line flushing valve, comprising:

[0008] A valve body, one side of the valve body is provided with a first liquid inlet for receiving pressurized water, and the top of the valve body is provided with a liquid outlet for pumping milk;

[0009] An end cover is arranged at the valve opening of the valve body, the end cover is provided with a second liquid inlet for receiving milk, a rubber plug is slidably connected to the inner wall of the valve body, and a return spring is arranged between the rubber plug and the end cover;

[0010] Snap-fit ​​components are provided on the valve body and end cover to facilitate quick installation and removal of the end cover.

[0011] In a possible design, the buckle assembly includes two buckles symmetrically fixedly arranged on the outer wall of the end cover, and a buckle block used in conjunction with the buckles is fixedly arranged on the outer wall of the valve body.

[0012] In a possible design, a sealing ring is provided between the valve port of the valve body and the inner wall of the end cover.

[0013] In a possible design, the rubber plug is arranged in a mushroom shape, and the thin end of the rubber plug faces the first liquid inlet.

[0014] In a possible design, the radii of the two ends of the rubber plug are respectively larger than the radii of the corresponding first liquid inlet and second liquid inlet.

[0015] In a possible design, the rubber plug is made of rubber material, and the arc leaves of the rubber plug can be deformed under pressure, so that the pressurized water can smoothly enter the liquid outlet.

[0016] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention.

[0017] In the present application, when in use, the milk circuit flushing valve has the same function as the switching valve described in the patent with announcement number CN116649786A. When there is no pressurized water input to the second liquid inlet, the first liquid inlet is in a closed state, and the liquid outlet can pump milk from the second liquid inlet to make milk foam; when pressurized water is input to the second liquid inlet, the rubber plug is pushed open by the pressurized water, the first liquid inlet is opened, and the second liquid inlet is closed, so that the pressurized water flushes the valve body and the emulsifier at the rear end; when the pressurized water stops being input to the first liquid inlet, the compressed return spring stretches to reset the rubber plug to its initial state.

[0018] The utility model has the following beneficial effects:

[0019] While meeting basic use requirements, the utility model greatly reduces the number of parts, greatly reduces the cost of parts and simplifies the assembly process, and the length of the product can be reduced by half, thereby reducing the assembly space occupied by the coffee machine.

[0020] The utility model provides a snap-fit ​​assembly to facilitate quick installation and opening of the end cover so as to maintain and replace internal parts. The provision of a sealing ring helps to improve the sealing between the valve body and the inner wall of the end cover, thereby preventing liquid from leaking out. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the disassembled structure of the utility model;

[0023] Figure 3 This is a schematic diagram of the end cover, return spring and rubber plug structure of the utility model;

[0024] Figure 4 It is a schematic structural diagram of the utility model in a sectional view.

[0025] Figure numerals: 1, valve body; 2, first liquid inlet; 3, liquid outlet; 4, end cover; 5, second liquid inlet; 6, rubber plug; 7, return spring; 8, sealing ring; 9, buckle; 10, buckle block. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be understood that the terms "opening", "upper", "middle", "length", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In order to keep the following description of the embodiments of the present invention clear and concise, the present invention omits detailed descriptions of known functions and known components. Example

[0029] Please refer to Figure 1-4 , a coffee machine milk line flushing valve, which is used in the field of flushing valves, including:

[0030] A valve body 1, one side of the valve body 1 is provided with a first liquid inlet 2 for receiving pressurized water, and the top of the valve body 1 is provided with a liquid outlet 3 for pumping milk;

[0031] The end cover 4 is arranged at the valve port of the valve body 1. The end cover 4 is provided with a second liquid inlet 5 for receiving milk. A rubber plug 6 is slidably connected to the inner wall of the valve body 1. A reset spring 7 is arranged between the rubber plug 6 and the end cover 4. When there is no pressure water input to the second liquid inlet 5, the first liquid inlet 2 is in a closed state, and the liquid outlet 3 can pump milk from the second liquid inlet 5 to make milk foam; when there is pressure water input to the second liquid inlet 5, the rubber plug 6 is pushed open by the pressure water, the first liquid inlet 2 is opened, and the second liquid inlet 5 is closed, so that the pressure water flushes the valve body 1 and the emulsifier at the rear end; when the pressure water stops inputting to the first liquid inlet 2, the compressed reset spring 7 is extended to reset the rubber plug 6 to the initial state. Under the condition of meeting the basic use requirements, the milk line flushing valve is compared with the switching valve described in the patent with the announcement number CN116649786A, and the number of parts is greatly reduced, the cost of parts is greatly reduced and the assembly process is simplified, and the length of the product can be reduced by half, thereby reducing the assembly space occupied by the coffee machine;

[0032] The rubber plug 6 is arranged in a mushroom shape, with the thin end of the rubber plug 6 facing the first liquid inlet 2, and the radii of the two ends of the rubber plug 6 are respectively larger than the radii of the corresponding first liquid inlet 2 and the second liquid inlet 5, so that the rubber plug 6 can effectively block the first liquid inlet 2 or the second liquid inlet 5 regardless of moving forward or backward. The rubber plug 6 is preferably made of rubber material, and the arc leaves of the rubber plug 6 can be deformed by the water pressure of pressurized water, so that the pressurized water can smoothly enter the liquid outlet 3, so as to flush the valve body 1 and the emulsifier at the rear end of the liquid outlet 3. Example

[0033] Improvements based on Example 1:

[0034] Please refer to Figure 1-2 , a snap-fit ​​assembly is provided on the valve body 1 and the end cover 4 to facilitate quick installation and removal of the end cover 4. The snap-fit ​​assembly includes two buckles 9 symmetrically fixedly provided on the outer wall of the end cover 4. A buckle block 10 used in conjunction with the buckle 9 is fixedly provided on the outer wall of the valve body 1. By providing the buckle 9 and the buckle block 10, it is convenient to quickly install and open the end cover 4 so as to maintain and replace the internal parts.

[0035] Please refer to Figure 2 and Figure 4 A sealing ring 8 is provided between the valve port of the valve body 1 and the inner wall of the end cover 4. The sealing ring 8 is provided to help improve the sealing between the valve port of the valve body 1 and the inner wall of the end cover 4, thereby preventing liquid from leaking out.

[0036] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited to them. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model; in the absence of conflicts, the embodiments of the utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the utility model shall be based on the protection scope of the claims.

Claims

1. A coffee machine milk line flushing valve, comprising a valve body (1), one side of the valve body (1) being provided with a first liquid inlet (2) for receiving pressurized water, and the top of the valve body (1) being provided with a liquid outlet (3) for sucking milk; characterized in that: An end cover (4) is arranged at the valve opening of the valve body (1); a second liquid inlet (5) for receiving milk is arranged on the end cover (4); a rubber plug (6) is slidably connected to the inner wall of the valve body (1); a return spring (7) is arranged between the rubber plug (6) and the end cover (4); and a snap-fit ​​assembly is arranged on the valve body (1) and the end cover (4) to facilitate quick installation and removal of the end cover (4).

2. The coffee machine milk line flushing valve according to claim 1, characterized in that: The buckle assembly comprises two buckles (9) symmetrically fixedly arranged on the outer wall of the end cover (4), and a buckle block (10) for use with the buckles (9) is fixedly arranged on the outer wall of the valve body (1).

3. The coffee machine milk line flushing valve according to claim 1, characterized in that: A sealing ring (8) is provided between the valve port of the valve body (1) and the inner wall of the end cover (4).

4. The coffee machine milk line flushing valve according to claim 1, characterized in that: The rubber plug (6) is arranged in a mushroom shape, with the thin end of the rubber plug (6) facing the first liquid inlet (2).

5. The coffee machine milk line flushing valve according to claim 4, characterized in that: The radii of the two ends of the rubber plug (6) are respectively larger than the radii of the corresponding first liquid inlet (2) and second liquid inlet (5).

6. The coffee machine milk line flushing valve according to claim 5, characterized in that: The rubber plug (6) is made of rubber material, and the arc leaves of the rubber plug (6) can be deformed under pressure, so that pressurized water can smoothly enter the liquid outlet (3).

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